The Command Arms Accessories Caa M-16/AR-15/M-4 Picatinny Bayonet Lug Mount TM16FA1 is a specially designed bayonet adapter for securing the fitting of light and laser sight mounts, bipods and any Picatinny/ Weaver rail mount accessories. The Command Arms Accessories rail mount is easy to fit and remove, and secured by an Allen head screw. The rail mount by Command Arms Accessories is also constructed of billet aviation grade aluminum using CNC machinery.